Drill-gage.



Patented Oct. I, 190|.

A. SCHRAMEK & J. KYTLICA.

DRILL GAGE.

(Application led July 8, 1901.)

2 Sheets-Sheet I.

(No Modal.)

#Mn/emga@ Yu: Noam Pneus' co maremma.. wmwsron. n. c.

No. 663,664. Patented oci. l, mol.

A. SC-HRAMEK. J. KYTiLICA.

- DRILL GAGE.

(Application med .my s, 1601.) (N o Model.)

2 Sleets-Sheet 2.

'lll/1711,14

UNITED STATES PATENT OFFICE?.

ANTON SCHRAMEK AND JOHN KYTLICA, OF CHICAGO, ILLINOIS.

DRILL- GAGE.

sPnoIFIcA'IIoN forming para of Letters Patent No. 683,664, ated osto'ber 1, 1961.

lppntaitn ne 'July s, 190i.

To @ZZ 1071.071?, it may concorre: l

vBe it known that we, ANTON SGHRAMEK, a citizen of the United States, and JOHN KYT- LIGA, a subject of the Emperor of Austria- Hungary, both residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Drill-Gages, of which the following is a specitication.

This invention relates to improvements in gages, and while it is more especially intended to be used as a drill-gage yet it may be employed as a gage for other tools; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.

The object of our invention is to provide a gage which shall be simple and inexpensive in construction, strong, durable, and effective and accurate in operation.

In order to enable others skilled in the art to which our invention pertains to make and use the same, we will now proceed to describe it, referring to the accompanying drawings, in which- Figure l is a plan View of a gage embodying our invention, showing it shortened for the convenience of illustration. Fig. 2 is a view in side elevation thereof. Fig. 3 is an enlarged view of a portion of one of the jigs and a part of the main gage-bar. Fig. 4 is a view, partly in section and partly in elevation, through the securing mechanism for the central pivot. Fig. 5 is 'a plan View taken on line 5 5 of Fig. 4 of a portion of the main gage-bar, the main transverse gage-bar, and a portion of the mechanism for securing said pivot and bars together. Fig. 6 is a detached plan view of an attachment for taking inside measurements. Fig. 7 is a view in elevation thereof. Fig. 8 is a vertical sectional view taken on line 8 8 of Fig. 7. Fig. 9 is a detail view of a portion of said attachment. Fig. 10 is a plan view of a portion of the main gage-bar and the jig thereof. Fig. 11 is a sectional view taken on line 11 11 of Fig. 10. Fig. 12 is an end view of the said jig and gage-bar. Fig. 13 is a plan view of a jig used on one of the supplementary side gage-bars. Fig. 14 is a sectional view thereof, taken on line 14 14 of Fig. 13. Fig. 15 is a detail view serai No. 67,2154. (No model.)

showing the means for connecting Ithe sup-A 0age-bars to the main transverse gage-bar., qFig. 16 isa detail view of the screw therefor. Fig. 17 is a plan view of o n'e end of the gage-bar which is mounted on thesupplem'entar'ytransverse gage-bar. Fig. 18 is a plan View thereof with a jig mounted thereon. Fig. 1'9 is a sectional view taken on line 19 19 of Fig. 18. Fig. 2O is a view, partly in section and partly in elevation, taken on line 2O 2O of Fig. 2, of the mechanism employed for securing the supplementary side gagebars and the supplementary transverse gagebar together. Fig. 21 is a detail view of the screw thereof. Fig. 22 is a plan view of a porplementaryv side tion of the supplementary transverse gagebar, a part of the intermediatesupplementary gage-bar, and the mechanism for securing the said bars together. Fig. 23 is a sectional view taken on line 23 23 of Fig. 22. is a sectional view taken on line 24 24 of Fig. 1, showing the means for securing the main gage-bar to the segmental gage-bar.

Similar letters refer to like parts throughout the different views of the drawings.

A-represents the main gage-bar, which comprises two parallel pieces a, joined together at one of their endsand having on their upper surfaces graduate-marks, as is clearly shown in Fig. 1 of the drawings. A is rigidly secured to a segmental gage-bar A', which is also provided on its upper surface with a scale or graduate-marks.

The lower surfaces of the pieces a of the Fig. 24

One end of the bar main gage-bar are formed with angular recesses al to cause them to engage suitable recesses in the sleeve of the jig, which is mounted on said bar. The pieces a, comprising the bar A, are formed on their lower surfaces at about their middle with segmental recesses a2 to receive the circular upturned iange a3 on the lower portion of the tube or sleeve a, which passes between the pieces a and has its upper portion screw-threaded to engage a nut a5, located thereon. Extending crosswise of the main gage-bar A is a main transverse gage-bar A2, which comprises two parallel pieces 0.6, joined together at one of their ends and having on their upper surfaces graduate-marks. The pieces et, comprising the bar A2, are angular in cross-section, as shown in Figs. 2, 4, 5, and l5 of the drawings, and have about their middle on their upper surfaces segmental grooves a." to receive the circular flange a8 on the washer a, which surrounds the sleeve a4 and rests on the upper surface of the bar A2. (See Fig. 4.) Within the sleeve a4 is located a bushing al", which has its lower outer portion flared to t the correspondingly-shaped opening in the lower end of the sleeve a4 and has its upper portion split and screw-threaded to engage a nut d, employed for clamping the bushing d10 on the pivot a12,which has on its upper end a milled stem 01,12, by means of which it may be turned. The joined end of the bar A2 is provided with an opening b, through which the graduate-scale on the segmental bar A may be seen and read. The bar A2 is adjustably secured to the segmental bar A' by means of a screw b', which passes through the end of the bar A2, and has in its head a recess b2 to receive the edge of the-bar A' and a thumb-nut b3 on the upper end of the screw. On the main barA is located a jig for one of the drills, which comprises a block B, having a circular opening and alongitudinal slot b4, communicating therewith. The lower portion yof the block B is formed with angular recesses b5 to fit over the pieces a of the main gage-bar. Within the circular opening of the block B is a sleeve B, which has an annular recess h6 to receive the inner portions of the pieces a. (See Fig. 11.) Within the hollow of the sleeve B is located a bushing B2, in which the drill or tool may be located. Extending crosswise the block B is a screwbolt B3, used for tightening the sleeve B' on the bushing. The upper surfaceof the block Bis provided with a boss b2', in which is located one end of a screw hs, which passes through a suitable opening on a boss b9', carried by a plate or block B4, which is formed to t between the pieces a of the main gagebar and to rest on the upper surface thereof. The Vblock B4 is formed with a slot bw, and has a set-screw 611 to clamp the upper and lower portions'otl said block on one of the pieces or of the main bar. The screw bsis provided with a Ithumb-wheel U12, used for turning the sc-rew when it is desired to adjust the jig-block B on the main gage-bar. Loca-ted on the upper surface of the pieces ct of the main gage-bar A is4 a clamp or attachment C, which has a downwardly-extendin g V-shaped portion c at about its middle and at its ends two vdownwardly-extending parts c and c2', the latter being separate from the portion C and secured thereto by means of a screw-bolt c2, which passes through an opening in the part c2 and engages a suitable opening in the porti'on'C. ln using the gage for taking the inside Ameasurements of a tube or circular artij cle or for adjusting the drill in respect to the corners formed by said bars.

esaeee article may be ascertained. Again 'referring to the jig mounted on the main gage-bar A and above described, by reference to Figs. l, 3, 10, and ll of the drawings it will be seen that each side ofthe block B is provided with a slot d, through which the graduatemarks on the bars d may be seen. The face of the block is formed with beveled portions d', inclined toward the slot rl, and has on said beveled portions graduate-marks representing smaller fractional parts .than those on the main gage-bar. For instance, suppose the scales on the gage-bar are divided into inches and eighths of an inch, while those on the beveled portions of the jig are divided into sixteenths of an inch. Now by sliding the jig by means of the screw bs so as to place two of the marks on the block between two or the marks on the main gage-bar a scale of thirty-secondsof an inch will be produced, and so on if the fractional scale on the block is decreased.

In Fig. l of the drawings we have shown our gage provided with two supplementary .side gage-bars D and D', each of which comprises two parallel pieces d2, joined together at their ends. These gage-bars are provided on their upper surfaces with graduate-marks and have their lower surfaces inwardly beveled, as at d3. (See Fig. 20.) Extending crosswise the ends of the bars D and D' is a supplementary trans-verse gage-bar D2, which has on its upper-surface grad uatemarks and its lower surface inwardly beveled to receivel the beveled head d4 on the set-screws d5', which pass between the parallel pieces composing the bars D, D', and D2. At the junod ture of each of the bars D and D with the bar D2 is located a plate D3', which ha-s at its corners down'turned portions to-rest between The said screws d5' pass through suitable openings in the plates d3 and have on their upper endsnuts d(i to firmly secure the plates Dsin position on -their respective bars. The opposite ends Yof the bars D and D are secured to the main transverse gage-bar A2 by means of setscrews di and nuts di on the upper ends there-4 of. The lower ends 4ot' lthe screws d? are provided with heads di, having shoulders d10' to fit in the angularl recesses-of the pieces a'of the bar A2 and with beveled portions du' to res-t against correspondingly-shaped portions on' the lower sur-faces of the bars D and D', as is clearlyshown in Fig. l5 of the drawings. On one `or both of the bars D and D is located a jig, which comprises a block E, having a recess on its lower surface to receive the `pieces d2, compris-ing said bars, and acirc'ular vertical opening e to receive the vbushing e for the drill or other tool. The plate E is provided with two bosses e2, in which is located a screw e3 for clamping them together, so as to securely hold the bushing e' in place. The plate VE is also provided with a vslot Ae", through which the graduate-marks on the bars D and D may be read, and, like IOO esaeee the block B, has a beveled portion e5, provided with graduate-marks of dierent fractions from that shown on the said bars and for the same purpose as above described in reference to the block B or jig mounted on the main gage-bar.

The lower surface of the plate E is provided with a recess e6 to receive the bars cl2. (See Fig. I4.) Passing through the plate E between the bars d2 are screws e7, which have on their lower ends heads e8 to engage the bars d2 and on their upper ends nuts e9 to clamp the tie wires or rods 61, which are located between the said nuts and washers en on `said screws. These tie-rods are employed for uniting the dierent jigs together, and the jig on the main gage-bar A is likewise provided with screws eT for the purpose of engaging said wires. Located between the bars D and D and on the bar D2 is an intermediate gage-bar D3, which comprises two parallel pieces cl2, having on their upper surfaces graduate-marks and joined together at each of their ends. The end of the bar D8 adjacent to the main gage-bar is provided with a circular opening g, in which is located a bushing g for the reception of the drill or other tool. Located around the circular portion of the bar D2 is a clamp G, which is provided near its ends with a screwbolt g2, used for tightening the clamp. The said clamp is also provided with set-screws g3, used for engaging tie-rods el", as in the other jigs. Located on the bars D2 and D3 is a T-shaped plate H, which is provided with a slot h, through which the marks on the bar DB may be read. The face of the plate H is provided with an inclined portion h', having graduate-marks representing smaller fractional parts than those on the gage-bar D3. The plate H is also provided with a slot h2,

through which the marks on the gage-bar D2 may be read. The face of the plate is provided with an inclined portion ha, having graduate-marks representing smaller fractional parts than those on the bar D2. Passing through the plate H is a screw-bolt h4, which has on its lower end a beveled head h5 to engage the bar D2 and on its upper end a nut h6 used for securing the plate in position.

In Fig. l of the drawings we have shown our instrument provided with jigs on the main gage-bar, one of the supplementary side gagebars, and on the intermediate gage-bar, and by dotted lines a jig on the main transverse gage-bar.

The jig represented by dotted lines is shown as being connected to the jig on the main gage-bar by means of a tie-wire elo, and it is apparent that all of the jigs may be connected by such wires, and it is further evident that jigs may be placed on each of the gage-bars, and in practice we usually employ one on each of said bars.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a drill-gage, the combination with a main gage-bar, of a main transverse gage-bar adj ustably secured thereto, a jig slidably mounted on each of said bars and having slots through which the marks on the bars may be seen and provided on their faces with graduate-marks, substantially as described.

2. In a drill-gage, the combination with a main gage-bar, of a main transverse gage-bar adjustably secured thereto, a jig slidably mounted on each of said bars and having slots through which the marks on the bars may be seen and provided on their faces with gradnate-marks, and means to connect the jigs together, substantially as described.

3. In a drill-gage, the combination with a main gage-bar, of a segmental gage-bar fixed to one end thereof, a main transverse gagebar adj ustably secured to the main bar, and segmental bar, the transverse bar having a slot in its end connected to the segmental bar and provided with marks on its face near said slot, a jig slidably mounted on the main and transverse bars and having slots through which the marks on the bars may be seen and provided with graduate-marks on their faces near said slots, substantially as described.

4. In a drill-gage, the combination with a main gage-bar, of a'segmental gage-bar fixed to one end thereof, a main transverse gagebar adj ustably connected to the main and segmental bar, supplementaryside gage-bars adjustably secured at one of their ends to the main transverse bar, a lsupplementary transverse gage-bar adj ustably secured to the side ICO gage-bars, an intermediate gage-bar adjustably secured to the supplementary transverse bar, jigs mounted on any or all of said bars and means to connect them together, substantially as described.

ANTON SCHRAMEK. JOHN KYTLICA. Witnesses:

CHAs. C. TILLMAN, A. GusrAFsoN. 

